Wrench.



PATBNTE'D MAR. 15,1904.-

LTRUDEAU.

WRENCH.

APPLICATION HLEDMAY'QJ. 1903.

N0 MODEL.

No. f5-1,5%.

latented March i5', 1904'.

UNITED STATES PATENT OFFICE.

LEVI TRUDEAU, OFTOLEDO, OHIO.

WRENCH.

SPECIICATION forming part of Letters Patent No. 754,520, dated March 1.5, 1904.

Application filed May 25,1903. Serial No. 15 8,676. (No model.)

tion of a wrench the movable jaw of which is to be adapted for quick adjustment to lit various sizes of nuts; and with this end in view the invention consists in certain novelties of construction and combinations of parts, as

.hereinafter set forth and claimed.

The accompanying drawings, forming part vof the specification, illustrate the novel features of the wrench constructed according to the best mode I have so far devised for the practical application of the principle.

Figure l is a plan view of a wrench embodying my improvements. Fig. 2 shows the pawl. Fig. 3 shows the movable frame. Fig. 4 illustrates a modification of the pawl-and-ratchet mechanism. Fig. 5 shows the location of the adjusting-screw.

Referring to the several figures, the letter A designates the handle of the wrench, the exterior part of which is preferably made removable, so that the jaw and frame may be taken from the shank; B, the shank; O, ratchetteeth formed for a suitable distance along the edge of the shank; D, the outer fixed jaw; E, the adjustable pawl-frame; F, the arms of the frame, each having a hole corresponding in shape to the shape of the shank in cross-section; G, the base of the frame; H, a leafspring; I, a perforated lug adjacent one of the arms of the frame; J, a pawl; K, the tongue of the pawl; L, the forked perforated end of the pawl; M, projections on the sides of the pawl, whichmay have milled surfaces; N, a pin which pivots the forked. end of the pawl to the perforated lug on the frame; O, an adjusting-screw; P, the enlarged and milled portion of the adjusting-screw; Q, a threaded end of the set-screw; R, a threaded recess in the end of the pawl-frame; S, the movable jaw, having a hole therethrough corresponding in shape to the shape of the shank in cross-section; T, a circular hole through the jaw; U, the end of the adjusting-screwlocated within the hole through the movable jaw; V, a threaded hole in the end U of the set-screw, and W gular to fit the recesses between the teeth.

The operation of the wrench is obvious. The pawl is raised and the frame and jaw moved so that the latter will engage the nut, when the pawl is dropped to engage the teeth on the shank, the spring holding it in place.

` Then lthe adjusting-screw is turned to cause the jaw to be brought into frictional contact with the nut. Owing to the disposition of the teeth, a small space may sometimes be left between the jaw and the nut, and the adjustingscrew is provided to move the jaw so as to close up-this space. To release the wrench from the nut, the pawl is raised and the frame and jaw retracted.

From the foregoing description, taken in connection with the drawings, it is clear that I have produced a quick-acting wrench having a double adjustment and which fulfils all the conditions set forth as the purpose and object of my invention.

What I claim asV new, and desire to secure by Letters Patent, is-

A wrench having a toothed shank; a movable frame provided with perforated arms F, F, base G, a spring secured upon the inner surface of the base, a perforated lug I, and a threaded recess R; a pawl J located between the base G and the toothed shank and pivoted to lug I, said pawl having projections M, VI, at the sides to be engaged by the thumb and linger; a movable jaw S having a hole for the shank B, a circular hole T and a recess of larger diameter than the hole; an adjustingscrew located between the movable frame and the movable jaw, one end Q being threaded larged portion of the adjusting-screw bengn and engaging a threaded recess R in the frame, frictional Contact with the movable jaw. IO the other end U located within the circular In testimony whereof I affix my signature in hole T in the jaw S and having a threaded hole presence of two witnesses.

5 V; and the headed and threaded screw W, the LEVI TRUDEAU.

head seated within the recessin the movable Witnesses: jaw and the shank engaging the threaded hole JOHN KETIING,

V in the end of the adjusting-screw; the en- C. H. `EDDY. 

